#! /bin/sh
# Copyright (c) 2002 FhG FOKUS, Germany.
# All rights reserved.
#
# /etc/init.d/opensips
#
### BEGIN INIT INFO
# Provides:          sip
# Required-Start:    $network
# X-UnitedLinux-Should-Start: $network
# Required-Stop:     $network
# X-UnitedLinux-Should-Stop: $network
# Default-Start:     3 5
# Default-Stop:      0 1 2 6
# Short-Description: OpenSIPS
# Description:       Start OpenSIPS and provide the routing of SIP requests.
### END INIT INFO


# Check for missing binaries (stale symlinks should not happen)
OSIPS_BIN=/usr/sbin/opensips
test -x $OSIPS_BIN || exit 5

# Check for existence of needed config file and read it
OSIPS_CONFIG=/etc/opensips/opensips.cfg
test -r $OSIPS_CONFIG || exit 6

# Shell functions sourced from /etc/rc.status:
#      rc_check         check and set local and overall rc status
#      rc_status        check and set local and overall rc status
#      rc_status -v     ditto but be verbose in local rc status
#      rc_status -v -r  ditto and clear the local rc status
#      rc_status -s     display "skipped" and exit with status 3
#      rc_status -u     display "unused" and exit with status 3
#      rc_failed        set local and overall rc status to failed
#      rc_failed <num>  set local and overall rc status to <num>
#      rc_reset         clear local rc status (overall remains)
#      rc_exit          exit appropriate to overall rc status
#      rc_active	checks whether a service is activated by symlinks
#      rc_splash arg    sets the boot splash screen to arg (if active)
. /etc/rc.status

# Reset status of this service
rc_reset

# Return values acc. to LSB for all commands but status:
# 0	  - success
# 1       - generic or unspecified error
# 2       - invalid or excess argument(s)
# 3       - unimplemented feature (e.g. "reload")
# 4       - user had insufficient privileges
# 5       - program is not installed
# 6       - program is not configured
# 7       - program is not running
# 8--199  - reserved (8--99 LSB, 100--149 distrib, 150--199 appl)
# 
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signaling is not supported) are
# considered a success.

case "$1" in
	start)
		echo -n "Starting OpenSIPS "
		## Start daemon with startproc(8). If this fails
		## the return value is set appropriately by startproc.
		startproc $OSIPS_BIN -f $OSIPS_CONFIG

		# Remember status and be verbose
		rc_status -v
		;;
	stop)
		echo -n "Shutting down OpenSIPS "
		## Stop daemon with killproc(8) and if this fails
		## killproc sets the return value according to LSB.

		killproc -TERM $OSIPS_BIN

		# Remember status and be verbose
		rc_status -v
		;;
	restart)
		## Stop the service and regardless of whether it was
		## running or not, start it again.
		$0 stop
		$0 start

		# Remember status and be quiet
		rc_status
		;;
	force-reload)
		## Signal the daemon to reload its config. Most daemons
		## do this on signal 1 (SIGHUP).
		## If it does not support it, restart.

		echo -n "Reload service OpenSIPS "
		## Otherwise:
		$0 stop  &&  $0 start
		rc_status
		;;
	reload)
		## Like force-reload, but if daemon does not support
		## signaling, do nothing (!)

		## Otherwise if it does not support reload:
		rc_failed 3
		rc_status -v
		;;
	status)
		echo -n "Checking for service OpenSIPS "
		## Check status with checkproc(8), if process is running
		## checkproc will return with exit status 0.

		# Return value is slightly different for the status command:
		# 0 - service up and running
		# 1 - service dead, but /var/run/  pid  file exists
		# 2 - service dead, but /var/lock/ lock file exists
		# 3 - service not running (unused)
		# 4 - service status unknown :-(
		# 5--199 reserved (5--99 LSB, 100--149 distro, 150--199 appl.)

		# NOTE: checkproc returns LSB compliant status values.
		checkproc $OSIPS_BIN
		# NOTE: rc_status knows that we called this init script with
		# "status" option and adapts its messages accordingly.
		rc_status -v
		;;
	*)
		echo "Usage: $0 {start|stop|status|restart|force-reload|reload}"
		exit 1
		;;
esac
rc_exit
